What is the difference between the standard diameter DN3 and the nominal diameter 4mm of a flowmeter?

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What are the measurement ranges of turbine flow meters?

1、 Turbine flowmeter is based on the electromagnetic induction generated by the rotation of turbine blades inside the flowmeter to measure the flow rate. It can measure both liquids and gases, and is very sensitive. The diameter for measuring liquids is generally DN4- DN200, and for measuring gases it is generally DN20- DN300;

2、 Turbine flowmeter measures liquids with a very small diameter and good economy. The units are generally m3/h (cubic meter/hour), L/min (liter/base silver minute), etc. It has instantaneous flow display and cumulative flow display;

3、 The measurement range corresponding to different diameters of turbine flow meters is: liquid measurement: (unit of measurement: m3/h): DN4: 0.04--0.25; DN6：0.1---0.6； DN10：0.2---1.2； DN15：0.6---6； DN20：0.8---8； DN25：1---10； DN32

1.5---15； DN40：2---20； DN50：4---40； DN65：7---70； DN80：10---100； DN100：20---200； ..... Gas measurement: (unit: m3/h): DN20:5-40; DN25：7.2---60； DN32：12---100； DN40：18---150； DN50：30---300； DN65：50---420； DN80：70---600； DN100：120---1000； ..... For more detailed information, please refer to the technical article on the website of Shandong Qiangsheng Automation Technology Co., Ltd.... Www.qszdh. com

2. What are the measurement ranges of vortex flowmeters?

1、 Vortex flowmeter is a flowmeter based on the Karman vortex principle for measurement. It can measure liquids and gases, and is also very economical. The diameter is generally DN10-- DN1000. With temperature and pressure compensation, it can accurately measure gas or steam flow, and has a wide range of applications;

2、 Vortex flowmeter can

3、 The measurement range corresponding to electromagnetic flowmeters of different diameters is: liquid measurement: (unit: m3/h): DN15

1.2-6; DN20

1.5---10； DN25：2---16； DN32

1.8---20； DN40：2.5---25； DN50：3.5---40； DN65：7.5---70； DN80：12---130； DN100：18---160； ..... Gas measurement: (unit: m3/h): DN15:4--28; DN20：6---40； DN25：8---50； DN32：15---150； DN40：18---180； DN50：25---480； DN65：50---500； DN80：80---800； DN100：120---1200； ..... For more detailed information, please refer to the technical article on the website of Shandong Qiangqiang Automation Technology Co., Ltd.... Www.qszdh.com

3. Does the diameter of the flowmeter have to be one size smaller than the diameter of the pipeline it is in?

The diameter of the flowmeter and the diameter of the pipeline are generally the same.

4. What is the difference between the standard diameter DN3 and the nominal diameter 4mm of the flowmeter? DN3 and nominal diameter 4mm refer to the same thing, only in different ways. DN is the abbreviation for the French standard "Non descriptor", also known as the European standard size (DIN, Deutsches Institut f ü r Normung). The DN standard is a system based on nominal diameter, used for the size design of pipeline systems and fittings. DN3 indicates that the nominal diameter of the flowmeter is 3 millimeters. The nominal diameter of 4mm is expressed in metric units, indicating that the diameter of the flowmeter is 4 millimeters. Therefore, both DN3 and nominal diameter 4mm refer to the caliber size of the flowmeter, but they are expressed i

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